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United States Patent | 5,259,857 |
Pasquier ,   et al. | November 9, 1993 |
A process and apparatus for controlling the manufacture of mineral fibers, in particular glass fibers, by use of a fiber-drawing process using internal centrifuging in a centrifuger. The peripheral strip is pierced by a large number of outlet orifices and the radiation emitted superficially by the peripheral strip is measured in order to determine the temperature of points of the peripheral strip and the vertical coordinate of each of the points measured.
Inventors: | Pasquier; Michel (Liancourt, FR); Guyot; Daniel (Rantigny, FR); Battigelli; Jean (Rantigny, FR) |
Assignee: | Isover Saint-Gobain (Courbevoie, FR) |
Appl. No.: | 770932 |
Filed: | October 4, 1991 |
Oct 04, 1990[FR] | 90 12228 |
Current U.S. Class: | 65/384; 65/29.19; 65/162; 264/8; 264/40.1; 264/40.6; 264/410; 425/8; 425/135; 425/136; 425/143; 425/144 |
Intern'l Class: | B28B 001/54; C29B 009/00; C03B 037/04 |
Field of Search: | 264/5,8,40.1,40.2,40.6 425/8,6,143,144,135,136 65/6,8,14,15,29,161,162 |
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4861362 | Aug., 1989 | Denniston | 65/6. |
4889546 | Dec., 1989 | Denniston | 65/6. |
Foreign Patent Documents | |||
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536137 | Dec., 1986 | DE | 65/6. |
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